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  • Title: Early Infant Risk Factors for Pediatric Eosinophilic Esophagitis.
    Author: Witmer CP, Susi A, Min SB, Nylund CM.
    Journal: J Pediatr Gastroenterol Nutr; 2018 Nov; 67(5):610-615. PubMed ID: 30095574.
    Abstract:
    OBJECTIVES: Eosinophilic esophagitis (EoE) is an inflammatory, atopic disease of the esophagus without a clear etiology. Our objective was to identify exposures and conditions in early infancy associated with the development of EoE. METHODS: A case-control study was performed using the Military Health System Database. Subjects diagnosed with EoE from October 2008 to September 2015 were matched 1:2 on age and sex. Early infant risk factors from the first 6 months of life were investigated. RESULTS: A total of 1410 cases with EoE were matched to 2820 controls. The median (interquartile range) age at diagnosis of EoE was 4.2 years (2.1-7.2) and 68.7% were boys. Proton pump inhibitors (adjusted odds ratio [aOR], 2.73; 95% confidence interval [CI] 1.93-3.88), histamine-2 receptor antagonists (aOR, 1.64; 95% CI 1.27-2.13), and antibiotics (aOR, 1.31; 95% CI 1.10-1.56) were associated with EoE. Prematurity (aOR, 1.46; 95% CI 1.12-1.89) and early manifestations of atopic disease such as milk protein allergy (aOR, 2.37; 95% CI 1.26-4.44) and eczema (aOR, 1.97; 95% CI 1.64-2.36) were related to increased odds for EoE. Erythema toxicum in infancy was strongly associated with a diagnosis of EoE (aOR 3.52; 95% CI 1.03-12.04). Infants with feeding difficulty (aOR, 1.45; 95% CI 1.18-1.77) and gastroesophageal reflux disease (aOR, 1.79; 96% CI 1.43-2.26) were also at increased risk for EoE. CONCLUSIONS: Acid-blocking medications and antibiotics during infancy were associated with later diagnosis of EoE. Erythema toxicum neonatorum, an eosinophilic immune phenomenon, was strongly associated with EoE. Identifying early infant risk factors for EoE may help to risk stratify the need for endoscopy.
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